From: Dave Jones <davej@redhat.com>
To: Luca Risolia <luca.risolia@studio.unibo.it>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: sn9c10x list corruption in 2.6.18.1
Date: Sun, 22 Oct 2006 14:15:39 -0400 [thread overview]
Message-ID: <20061022181539.GD27152@redhat.com> (raw)
In-Reply-To: <200610221346.53038.luca.risolia@studio.unibo.it>
On Sun, Oct 22, 2006 at 01:46:52PM +0200, Luca Risolia wrote:
> > I found one area in the driver where we do list manipulation without any locking,
> > but I'm not entirely convinced that this is the source of the bug yet.
> Spinlocks are not necessary there, becouse that piece of code is already
> isolated when running, to prevent concurrent accesses to the list from within
> the irq handler.
ok
> The bug should be elsewhere (probably not in the driver).
But it only happens when the user unplugs the camera, and no other
webcam driver seems to be affected by this problem.
That's fairly conclusive to me that the driver is misbehaving.
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2006-10-22 18:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-22 3:11 sn9c10x list corruption in 2.6.18.1 Dave Jones
2006-10-22 11:46 ` Luca Risolia
2006-10-22 18:15 ` Dave Jones [this message]
2006-10-22 21:22 ` Luca Risolia
2006-10-23 2:35 ` teunis
2006-10-23 11:37 ` Luca Risolia
2006-10-23 2:39 ` teunis
2006-10-22 20:37 ` Pekka Enberg
2006-10-22 20:54 ` Dave Jones
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